What is the primary function of a Database Management System (DBMS) in E911 systems?

What is the primary function of a Database Management System (DBMS) in E911 systems?

• A. A system of manual procedures and computer programs used to create, store and update the data required to provide Selective Routing and/or Automatic Location Identification for E9-1-1 systems.
• B. A hardware device to route calls to PSAPs.
• C. A public records repository for street names.
• D. A billing management system for calls.

Answer: (A)

The database management system in an E911 setup is the organized repository and management tool for the data that drives call routing and location display. It stores and maintains ALI information (the caller’s address/location) and SELR data (routing instructions that determine which PSAP handles a call), along with related GIS mappings. This data must be created, updated, and retrieved quickly and accurately so the E911 switch can route the call to the correct PSAP and present the caller’s location to the telecommunicator. It isn’t a hardware router, a public street-name repository, or a billing system—those functions are handled by other components or systems.

The database management system in an E911 setup is the organized repository and management tool for the data that drives call routing and location display. It stores and maintains ALI information (the caller’s address/location) and SELR data (routing instructions that determine which PSAP handles a call), along with related GIS mappings. This data must be created, updated, and retrieved quickly and accurately so the E911 switch can route the call to the correct PSAP and present the caller’s location to the telecommunicator. It isn’t a hardware router, a public street-name repository, or a billing system—those functions are handled by other components or systems.